In Nassau County there are 2 residential Cable providers covering 99.39% of the county. The average home can get speeds up to 941 Mbps. Note that we may have a financial relationship with some of the providers below. This does not influence rankings, and helps us provide high-quality detailed information for free.
This page contains all Cable internet providers in Nassau County, NY.
To see availability maps for all providers including fiber, cable, DSL, and more in Nassau County, NY please click below.
Nassau County, NY Availability Maps
Cable Internet Service Providers in Nassau County
Data updated 11/14/2025, based on FCC data from 12/31/2024. This is the most current data available as of .
To avoid wasting your time, providers with less than 1% coverage in Nassau County are not shown.
Nassau County Satellite TV & Internet Providers
DISH Satellite TV
DIRECTV Satellite TV
Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.
Viasat Satellite Internet
Where in Nassau County is cable internet available?
Cable Internet Availability Key
Cable is available in 99.39% of Nassau County. Areas in green have cable internet service, where areas in yellow or red may not. The most widely available provider is Optimum. Call one of the companies with service in Nassau County above to see who has service at your home.
How fast is cable internet in Nassau County?
The map below shows maximum cable internet speeds by area in Nassau County.
Cable Internet Speed Key
The average Nassau County home can get up to 941 Mbps on their cable internet plan. The fastest cable download speed in the county is 1,500 Mbps, which less than 1% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 98.27% of homes can only purchase plans up to 940 Mbps. See the internet provider details below for info about their speed and coverage in Nassau County.
Cable internet speeds tend to be faster in the west parts of Nassau County, and slower in the east areas of the county.
Is cable the fastest internet I can get in Nassau County?
The fastest internet for you may vary based on where in Nassau County you live. In general, fiber competes most often with cable in the county.
- Fiber is the fastest internet type for 99.43% of Nassau County homes.
- Cable is fastest for less than 1% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for less than 1% of Nassau County homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Nassau County, along with details on where in Nassau County and at what speeds.
Optimum Cable in Nassau County, NY
Optimum cable coverage
About 99.39%, or 1,387,271 people, have Optimum cable internet available to them in the county. The company covers the entire Nassau County area. Optimum is one of the largest internet service providers internet service providers in the US, with internet service available in most of Nassau County.
Optimum cable download speeds
Optimum is below average when comparing download speeds to all other internet providers in Nassau County. Versus other cable providers in the area, Optimum cable is the slowest. There are no different maximum speeds throughout Nassau County. The fastest plan anyone in Nassau County can order from Optimum goes up to 940 Mbps, and all Nassau County customers can get this speed.
Show all download speeds
- 100.0% up to 940.0 Mbps
Optimum cable upload speeds
In Nassau County download speeds tend to be faster than than upload speeds for Optimum cable. Compared to other ISPs, Optimum is below average where upload speeds are concerned, and one of the slowest compared to other Nassau County cable providers. Optimum offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Nassau County is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
Spectrum Cable in Nassau County, NY
Spectrum cable coverage
About 1.11%, or 15,427 people, have Spectrum cable internet available to them in the county. The company covers the southwest, west, and northwest Nassau County area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Nassau County.
Spectrum cable download speeds
Spectrum is below average when comparing download speeds to all other internet providers in Nassau County. Versus other cable providers in the area, Spectrum cable is below average. There are no different maximum speeds throughout Nassau County. The fastest plan anyone in Nassau County can order from Spectrum goes up to 1,000 Mbps, and all Nassau County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum cable upload speeds
In Nassau County download speeds tend to be faster than than upload speeds for Spectrum cable. Compared to other ISPs, Spectrum is below average where upload speeds are concerned, and one of the slowest compared to other Nassau County cable providers. Spectrum offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Nassau County is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
Nassau County Cable by Area
This information is most helpful to those looking for homes or considering moving to Nassau County or any of the areas nearby.
How does cable internet in Nassau County compare to the rest of New York?
Cable internet speeds in Nassau County are much faster versus the average speeds in New York: 0.00 Mbps in New York versus 941 Mbps in the county. The state has similar cable availability compared to the county. Average cable coverage in New York is 0.00% versus 99.39% in Nassau County.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Nassau County are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does cable internet look like in other counties?
Below are counties nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Counties
- Queens County, NY: more cable coverage, faster speeds
- Bronx County, NY: less cable coverage, faster speeds
- Kings County, NY: more cable coverage, faster speeds
- New York County, NY: less cable coverage, faster speeds
- Hudson County, NJ: less cable coverage, faster speeds
- Suffolk County, NY: less cable coverage, slower speeds
- Essex County, NJ: less cable coverage, faster speeds
- Union County, NJ: more cable coverage, faster speeds
- Morris County, NJ: less cable coverage, faster speeds
- Warren County, NJ: less cable coverage, faster speeds
Counties with Similar Populations
- Clark County, NV: less cable coverage, faster speeds
- San Bernardino County, CA: less cable coverage, faster speeds
- King County, WA: less cable coverage, faster speeds
- Santa Clara County, CA: less cable coverage, faster speeds
- Alameda County, CA: less cable coverage, faster speeds
- Allegheny County, PA: less cable coverage, faster speeds
- Wake County, NC: less cable coverage, faster speeds
- Montgomery County, MD: less cable coverage, faster speeds
- Collin County, TX: less cable coverage, faster speeds
- Contra Costa County, CA: less cable coverage, faster speeds